Percolating coffee-pot.



PATENT OFFICE.

WALTER H.' COOK, 0F NEW ORLEANS, LOUISIANA.v

PRCOLATING COFFEE-POT.

Specification of Letters Patent.

Application filed May 28, 1912. Serial N o. 700,267.

To all whom t may concern.'

Be it known that I, IVALTER H. Coon, a citizen of the United States,residing at New Orleans, in the parish of Orleans and State ofLouisiana, have invented new and useful Improvements in PercolatingCoffee-Pots, of which the following is a specification.

This invention. relates to improvements in percolating coffee pots, andits objects are to enable the drip of the infusion into the boilingchamber to be accurately regulated at any desired degree, and at thesame time, to enable a complete dissociation of the parts in thepercolating chamber for cleaning or other purposes.

- An e bodiment of the invention is illustrated in the accompanyingdrawings, wherein:

Figure l is a vertical central sectional view of the coilee pot in whichthe features of the invention are incorporated; Fig. 2 is a plan view ofthe pcrcolating chamber. Fig. 3' is a perspective view showing a detailof construction.

Similar characters of reference designate corresponding parts throughoutthe several views. l

The coffee pot comprises a boiling chamber 1 and a percolating chamber2. The latter may be of any well known form. As shown, it is in the formofa sheet metal cylindcr, and is formed with a slightly reduced`extension 3 which projects into .an opening in the top of the chamber1, and defines a Shoulder 4t whereby the chamber 2 is supported upon thechamber 1.-

The extension 3 has a conical bottom which is formed with an opening 5of suitable diameter, and through which the infusion drips from thechamber 2` to the chamber 1. The effective size of the opening 5controlled by a needle valve G, which passes axially through the chamber2 and at lts upper end projects beyond said chamber.

The support for the valve 6 includes a tube 7 which isk arranged Withinthe chamber 2 in surrounding relation to said valve, and which has fixedat its end a perforated screening plate 8 to prevent any grounds frompassing over into the chamber l. The tube 7 pr'ojects at its upper endbeyond the chamber 2, and its upper edge is formed with a. series ofsteps 9 of successively increasing height. The valve G, at its upperend, is provided with a laterally projecting pin 10 which is adapted torest upon any one of the steps 9. It will be obvious that thev positionof the valve G with reference to the opening 5` depends upon whichparticular step 9 of the tube 7 is engaged by the pin 10. If the lowerstep 9 is engaged by said pin,

the opening-5 is of its smallest effective size.

Patented Oct. 6, 1914-.'

the arrangement and number of the steps 9,

which are arranged above said cover, the latter having a central opening16 through which the tube 7 projects. Thus, the designations on thecover 11 may comprise the words Light, Medium, and Dark. The Word Lightis arrangedadjacent the highest step 9; the word Medium is arrangedadjacent the intermediate step 9; and the word Dark is arranged adjacentthe lowest step 9. If the 'finger 10 points tothe word Dark, as shown,said finger is resting on the lowest step 9, and an indication isthereby given that'full strength coHee will be produced. In like manner,if the finger l0 points to the Words Medium 1, or Light, said fingerrests upon the step adjacent said words, and an indication is given thatcoffee will be produced of medium or leaststrength, as the case may be.

In order to insure of the accuracy of the readings above referred to,the cover 11 should always occupy a definite position. andfor thispurpose, said cover niay have its edge provided with a notch 12, and th(upper edge of the chamber 2 maybe provided With a pin 13, which willproject inte Y the notch 12 and thereby hold the cover in the definiteposition referred to, and prevent any movement of the ,cover lromsaidposition. In this Way, the'accuracy of the readings and of theadjustment of the valve G is assured.

If desired, a` perforated plate 14 may be arranged in the chamber 2,above the coffee, the Water being poured'through this plate,

which thereby uniformly distributes the Y.

water overI the coffee in said chamber. The plate 14 loosely surroundsthe tube 7 and may rest upon an annular bead 15.

lt will be observed that the cover 11 may I of the valve 16,

' ally projectingl pin be removed Whenever necessary, Withoutinterfering with the arrangement or relation and that saidV valve isentirely dissociable from the tube 7. Ur, if desired, the'tube 7 and thevalve 6 may be withdrawn in a unitary manner from the chamber 2, toenable complete access to all the parts for cleaning or other purposes.

Having fully ldescribed my invention, l claim:

l.y ln a coffee pot, a boiling chamber, a

percolating chamber communicating thereivith, a tube projecting'- beyondthe percolating chamber and having a stepped upper end, a needle valveto control the drip of coffee from the percolating chamber to theboiling chamber, the valve having a laterally projecting pintoengage-upon the stepped vupper end ofthe tube, a cover for thepercolating chamber, the cover having an openix'ig through which thetube projects andv having designations corresponding; to

the steps upon the upper end of the tube and holding the coverk Whenclosed,

ot the percolating chamber, the plate in turn supporting the tube.

3. ln a coffee pot, a boiling chamber, a

percolating chamber communicating there- LY,vvitlm a tube projecting-beyond the percolating chamber and having a stepped upper end, a needlevalve to ycontrol the 'drip of coffee from the percolating chamber tothe boiling chamber, the valve having a laterally projecting pin toengage upon the stepped upper end of the tube., and a removable coverclosing the upper end ot the percolating chamber and provided with; anopening through which the tube projects.

4. ln a coffee ot, a `boiling chamber, a percolating chamber having anopening in its bottpm communicating with the boiling chamber, aremovable cover for the percolating chamber, a valve extendingvertically through said percolating chamber andv formed to regulate theeffective size of said opening, a tube inclosing the valve, the upperends of the valve and the tube projecting through the cover and thevalve being supported by the tube and being adjustable lengthwisethereof, and a vperforated screening plate for straining the infusionpassing to said opening, said plate being removably supported Within the'percolating' chamber and rigidly secured to the tube.

' In testimony whereof I have hereunto set my hand in presence of tivosubscribing Witnesses. y

- WALTER, H. 000K.

. Witnesses:

CHARLES H. NASH, ltoennr WATERMAN,

